Help please!!! with Flight design ctsw folder

Hi, everyone. I have a big problem . I download a airplane file from this web page:
http://www.premaircraft.com/ctsw_FSX/index.html .
I try to follow the instruction that they give to extract the Folder to the C: FSX folder, But I don't have on FSX a folder with that name. The only way that I can Fly the airplane is The traditional way: "The Flight design ctsw folder" on the" Airplane folder" on the simulator. I can fly the plane with no problem But the problem is that
http://www.premaircraft.com/ctsw_FSX/index.html .
I try to follow the instruction that they give to extract the Folder to the C: FSX folder, But I don't have on FSX a folder with that name. The only way that I can Fly the airplane is The traditional way: "The Flight design ctsw folder" on the" Airplane folder" on the simulator. I can fly the plane with no problem But the problem is that